Why Is Chemical Grouting Needed For Subway Installation?

There are so many different steps that have to be thought about when installing a subway. Along with the purchase of the equipment itself, a lot of thought, planning, and work have to be put into things like tunneling out the underground system. A big part of all of this that generally should not be skipped is using chemical grouting, which is a process that involves injecting a very strong grout into the soil. This is done to stabilize the soil, and it's an important part of most subway construction projects. These are two reasons why chemical grouting is often needed for subway construction.

It Makes Construction Easier

For one thing, using chemical grout is a good way to make the construction process easier. When operating heavy equipment in the area, you don't want to have to worry about the soil collapsing. Soil stabilization with chemical grouting makes it possible to operate heavy construction equipment on the construction site without this being a problem. Also, it makes digging out tunnels for the subway easier since it's easier to dig out specific tunnels when the soil is harder and more stable. Otherwise, doing a nice, clean tunneling dig is harder.

It Helps Protect the Subway

Of course, although chemical grouting does help a lot with making construction of a subway system a lot easier, this is not the only reason that it's used. More importantly, chemical grouting is used to help protect the subway once all of the construction has been completed and the subway is ready for use.

For one thing, subways trains are so big and heavy that they can cause a lot of vibration when they're moving underground. If the soil is not stable enough, there is always the chance that there could be a serious collapse that could put a lot of people at risk of being hurt. Even if this does not happen, the vibration can slowly cause problems with the soil, leading to eventual issues that have to be handled. If the soil is stabilized with chemical grouting before the subway is ever put into use, this can go a long way toward protecting both the subway system itself and the people who use it each day.

Chemical grouting is used for subway construction for these two reasons and others. With the right equipment and processes, chemical grouting can be used to help with a successful subway installation project.

Contact companies such as A-PAC Pressure Grouting Inc. for more information on chemical grouting.